Sleeve bolt

A sleeve bolt is a type of expansion anchor used in sport climbing. It consists of a bolt and a metal sleeve. When the bolt is tightened, the sleeve expands, pressing against the sides of the drilled hole in the rock. This process secures the bolt firmly in place, making it reliable for clipping in quickdraws and ensuring the climber's safety. Sleeve bolts are commonly used for securing anchors and protection points in outdoor sport climbing routes.

Examples

A sleeve bolt in lead climbing is a type of mechanical anchor used to secure the climber to the rock surface. It consists of a bolt with a sleeve that expands when tightened, providing a secure attachment point in the drilled hole. Climbers clip their quickdraws into these bolts as they ascend the route. This makes route bolting more reliable and safe, especially in limestone and sandstone.